public void SetCollectionAdapter_Add_ElementPresent_ReturnsFalse()
{
List <int> backingList = new List <int>()
{
12, 13, 14
};
SetCollectionAdapter <int> adapter = new SetCollectionAdapter <int>(backingList);
Assert.IsFalse(adapter.Add(13));
Assert.AreEqual(3, backingList.Count);
}
public void SetCollectionAdapter_Add_ElementNotPresent_ReturnsTrue()
{
List <int> backingList = new List <int>()
{
12, 13, 14
};
SetCollectionAdapter <int> adapter = new SetCollectionAdapter <int>(backingList);
Assert.IsTrue(adapter.Add(7));
CollectionAssert.Contains(backingList, 7);
}
public void SetCollectionAdapter_Add_IsReadOnly_ThrowsNotSupported()
{
ICollection <int> backingList = new ReadOnlyCollection <int>(new List <int>()
{
12, 13, 14
});
SetCollectionAdapter <int> adapter = new SetCollectionAdapter <int>(backingList);
NotSupportedException e = Assert.ThrowsException <NotSupportedException>(
() => adapter.Add(7));
Assert.AreEqual(
ExceptionMessages.CollectionIsReadOnly,
e.Message);
}